Doxa SUB 300 Aquamarine

Doxa SUB 300 Aquamarine 821.10.241.10
Images Courtesy of Doxa
Doxa SUB 300 Aquamarine 821.10.241.10

Aquamarine

Reference Number :

821.10.241.10

Series : SUB 300
Retail: $2,590
(As of: 05/2025)
This watch is not for sale, this page is just for reference purposes only. If you would like to purchase this watch, please contact Doxa. If you are interested in selling this watch to us, you can contact us here.
Quick TakeDive into that unmistakable retro cool with the DOXA SUB 300 Aquamarine strapped to your wrist. Forget subtle; this watch is about personality, shouting its presence with that vibrant turquoise dial – a splash of tropical water ready for any adventure. It’s more than just looks, though. Inside beats a COSC-certified heart, a proper Swiss automatic movement ticking away with chronometer precision, because knowing your exact time matters, whether you're timing a dive ascent or just trying not to be late. The cushion case, pure 70s funk in solid 316L steel, sits comfortably, while the famous beads-of-rice bracelet feels like liquid metal. That patented bezel isn't just for show; it's a real tool, ready to track minutes and depth, a nod to DOXA's serious dive heritage. From the domed sapphire crystal mimicking the old-school acrylic to the bright lume lighting up the depths (or just your bedside table), this Aquamarine blends vintage vibes with modern specs flawlessly. It’s a watch that doesn’t take itself too seriously but is absolutely serious about performance.
DescriptionThis timepiece integrates a Swiss-manufactured mechanical automatic movement, configured for self-winding operation and subjected to Contrôle Officiel Suisse des Chronomètres (COSC) certification protocols. This certification validates its performance regarding precision, operational robustness, and sustained reliability under specified conditions. The movement operates at a frequency of 28,800 vibrations per hour (4.0 Hz), contributing to the smooth sweep of the seconds hand and overall timekeeping accuracy. It furnishes a power reserve autonomously generated through rotor winding, estimated at approximately 38 hours when fully wound. Internal components feature decoration applied by DOXA. The primary time indications encompass hours, minutes, and central seconds, supplemented by a date display function integrated via an aperture positioned at the 3 o'clock location on the dial.

Constructed from high-grade 316L stainless steel, the watch case presents dimensions of 42.50 mm in diameter and 45.00 mm lug-to-lug, with a total height profile of 13.40 mm. Case integrity for underwater operations is ensured through the implementation of a screw-down crown mechanism and a solid stainless steel screw-down case back. These features contribute significantly to achieving a water resistance rating of 30 bar, equivalent to 30 atmospheres or approximately 300 meters (984 feet) of static water pressure. Protecting the dial is a scratch-resistant sapphire crystal, engineered with a domed profile reminiscent of the original 1967 model's plexiglass crystal, and treated with an anti-reflective coating to enhance legibility by minimizing glare. A key functional element is the unidirectional rotating bezel, incorporating DOXA's patented dual-scale system indicating dive time in minutes and depth in meters, designed for calculating no-decompression dive limits. Luminescence is provided by Super-LumiNova® coatings applied to all dive-critical markings, ensuring visibility in low-light or underwater environments. Attachment options include a stainless steel "Beads of Rice" bracelet or an FKM rubber strap, both featuring folding clasps equipped with wetsuit extensions; the rubber strap clasp utilizes a ratcheting adjustment mechanism. The lug width specification is 20.00 mm.
GenderMen
SignaturesDOXA
Country of OriginSwitzerland
Case Size42.5 mm
MovementAutomatic
FunctionsHours, Minutes, Seconds, Date
Power Reserve38 Hours
Case MaterialsStainless Steel
Bezel MaterialsStainless Steel
Lug MaterialsStainless Steel
Case BackSolid
CrownScrew Down
Dial ColorTurquoise
Band TypeStainless Steel
Clasp TypeDeployant
Band ColorStainless Steel
Year Made2020s
Limited EditionNo
Hour MarkersIndex
Band Width20 mm
Case Thickness13.4 mm
Case ShapeCushion
StyleDiver
Water Resistance 300 Meters
Crystal Sapphire
Lug to Lug 45 mm
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